Method for controlling power generation

Details Method for controlling power generation Method for controlling power generation

1991-04-02

1992-12-08

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Speed or frequency of generator

322 86, H02J 716

Patent

active

051701111

ABSTRACT:
The present invention is concerned with a method for power generation which may be used in conjunction with a generator in which a permanent magnet rotor and a Randell rotor provided in a casing are rotated simultaneously and generate power in an armature coil. The method includes a first step of controlling a magnetic flux .phi.2 of a control field coil for the Randell rotor with a field controller during low speed rotation in an additive direction to add the magnetic flux .phi.2 to a magnetic flux .phi.1 produced by the permanent magnet rotor, and a second step of controlling the magnetic flux during high speed rotation in a subtractive direction to subtract the magnetic flux .phi.2 from the magnetic flux .phi.1, so that a stable output level is produced.

REFERENCES:
patent: 3689826 (1972-09-01), Cherry
patent: 4456870 (1984-06-01), Rodari
patent: 4766362 (1988-08-01), Sadvary
patent: 5061889 (1991-10-01), Iwatani et al.
Shinko Denki Technical Report No. 114, vol. 32, No. 3, "Special High Speed Alternator and Application of It", pp. 112-117, 1987.

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